Weird problem with TinyLCD and solderless breadboard - Raspberry Pi Forums

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so i'm having weird problem tinylcd 3.5" tft. have written little program using pygame takes input gpio 4 , gpio 17 , displays icon on screen depending on state of pins.

if run program tinylcd connected pi 2 displays expected.

if run program tinylcd , cobbler board connected through ribbon cable displays expected.

problem arises when plug cobbler board solderless breadboard. breadboard has not yet had else connected, reason when run program on display garbled.

don't understand why plugging cobbler bare solderless breadboard makes difference. care enlighten me?

on side note, program works correctly if connect jumper wires directly ribbon cable sensors, don't think there issue there. seems odd doesn't work either of 2 breadboards have tried.

bump.


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